Valent Biosciences Corporation

Abbott Laboratories Corporation

Terry A Benson

Robert A Smith

David R Wilcox

Ayyappan Nair

Samun Dahod

Regina Adams

Ashish Harihar Dave

A novel bacterial strain of, VBTS 2528, is described. This strain comprises genes encoding Cry1Ac, Cry 1Ca, and Cry2Aa endotoxin proteins. The invention further relates to an insecticidal composition comprising a mixture of VBTS 2528 and to methods for controlling insect pests utilizing VBTS 2528.

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Bacillus thuringiensis containing compositions

Methods for controlling insect pests with compositions containing Bacillus thuringiensis strains

Novel bacterial isolates of B. thuringiensis are disclosed which have enhanced toxicity with respect to previously resistant or insufficiently susceptible insect species, including, but not limited to, Plutella xylostella, Spodoptera frugiperda and Spodoptera exigua, as well as certain secondary pests such as Trichoplusia ni. Such isolates may be characterized by their possession of a particular subset of the genes coding for the various B. thuringiensis .delta.-endotoxin proteins and by a characteristic plasmid profile, or array, known to be associated therewith. Also disclosed are a method for the efficient identification of such bacterial isolates utilizing generalized or, alternatively, gene-specific DNA probes; cloned or synthesized nucleotide sequences which are useful in the preparation of those probes; compositions containing an insecticidally effective amount of a bacterial isolate of the invention in combination with an acceptable carrier; and a method for the use thereof in the control or eradication of insect pests.

Bacillus thuringiensis isolates

Growing community of inventors

Waukegan, IL, United States of America

Terry A Benson